<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
</head>

<body>
    <div id="app">
        <input type="text" v-model="number">
        <son :numfromfather="number"></son>
    </div>
    <script src="./node_modules/vue/dist/vue.js"></script>
    <script>

        Vue.component("son", {
            template: "<div>这是子组件中获取到的number：{{numfromfather}}</div>",
            props: ["numfromfather"]
        })

        var vm = new Vue({
            el: "#app",
            data: {
                number: 100
            }
        })
    </script>
</body>

</html>